I have 295/40/20's on my 99 and I will be having 4.10 gears installed soon.
I think I remember from another post that not only is the speedo off which is obvious but that the truck won't shift correctly .
Is this true.
I don't have a chip so it can't be calibrated that way, I am waiting for the Predator tuner to come out and I'm sure that will work.
Do I have to get it calibrated in the mean time.
Thanks
Chris
Also doea anybody have any idea about what the gearing will end up being with the 20's and the 4.10's